Insole



FIG. 1 is a top perspective view of an insole showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a left side view thereof.

The broken lines in the figures depict environmental subject matter only, and form no part of the claimed design.

The shading in the figures shows contour and not surface ornamentation. 

CLAIM The ornamental design for an insole, as shown and described. 